<?php
function do_post_request($url, $data, $optional_headers = null) // Look mum, no cURL!
{
  $params = array('http' => array(
              'method' => 'POST',
              'content' => $data
            ));
  if ($optional_headers !== null) {
    $params['http']['header'] = $optional_headers;
  }
  $ctx = stream_context_create($params);
  $fp = @fopen($url, 'rb', false, $ctx);
  if (!$fp) {
    throw new Exception("Problem with $url, $php_errormsg");
  }
  $response = @stream_get_contents($fp);
  if ($response === false) {
    throw new Exception("Problem reading data from $url, $php_errormsg");
  }
  return $response;
}

function autentificacion_clientlogin() {
	$auth = do_post_request('https://www.google.com/youtube/accounts/ClientLogin', 'Email=floricantest&Passwd=E18XmgCz&service=youtube&source=Test', 'Content-Type:application/x-www-form-urlencoded');
	preg_match("/Auth=([A-Za-z0-9_-]*)/", $auth, $token);
	return $token[1];
}

?>